The ring looked right online. It arrived, and it would not go past your knuckle — or it went on fine and spun loose by afternoon. Both come from the same gap: not knowing your actual size before ordering. This guide closes that gap in about five minutes, with no ring sizer and no trip to a shop.
Mithra's ring size chart
Mithra & Co rings use US sizing. The chart gives both inner diameter and circumference, because the method you use below decides which number you will have.
| US size | Inner diameter | Circumference | Who it usually fits |
|---|---|---|---|
| US 5 | 15.7 mm | 49.3 mm | Small hands, pinky finger |
| US 6 | 16.5 mm | 51.8 mm | The most common size for Pakistani women — ring or index finger |
| US 7 | 17.3 mm | 54.4 mm | Average — middle or ring finger |
| US 8 | 18.1 mm | 56.9 mm | Slightly wider fingers, middle finger |
| US 9 | 18.9 mm | 59.5 mm | Wider fingers, or the index finger on larger hands |
Not sure where you fall? US 6 is the usual starting point for a first measurement — but measure rather than guess.
Three ways to measure at home
Method 1 — a paper strip or thread
Cut a thin strip of paper, or use non-stretch thread. Wrap it around the base of the finger where the ring will sit — snug, not cutting in. Mark where it overlaps, lay it flat against a ruler, and read the length in millimetres. That is your circumference; match it to the chart.
The common mistake is pulling it too tight. If your knuckle is noticeably wider than the base of the finger, measure both and choose a size between them, leaning toward the knuckle so the ring still goes on.
Method 2 — a ring that already fits
Take a ring that fits comfortably on the same finger. Lay it flat on a ruler and measure the inner diameter straight across the inside, edge to edge. Match that number to the diameter column. It is the fastest and most accurate method when the ring genuinely fits well.
It also works for a gift: borrow a ring the person wears on the finger you are buying for, and measure its inside.
Method 3 — a printable sizer
Print a ring sizer sheet at exactly 100 percent scale — never "fit to page", which shrinks it. Place an existing ring over the printed circles until one matches the ring's inner edge exactly. The number on that circle is your size.
When to measure
- In the evening. Fingers are largest at the end of the day. A morning measurement reads small.
- At room temperature. Cold shrinks fingers; a measurement taken in a cold room or a December morning runs small.
- Not straight after exercise or heat. Wait an hour — swelling reads large.
- Twice. Take two readings on different days and use the larger if they differ.
Pakistan adds a season. Fingers are noticeably larger in summer heat than in winter, so a ring sized in January can feel tight by a July afternoon. Measuring on a warm evening gives the size that fits all year; on cold mornings, a removable adjuster covers the gap.
Which finger and which hand
- Index finger — usually about one size larger than the ring finger.
- Middle finger — usually the widest; often US 7 or 8.
- Ring finger — the most common choice; often US 6 to 7.
- Pinky — usually one to two sizes smaller than the ring finger.
Measure the hand you will actually wear it on. The dominant hand typically runs half to one size larger than the other.
Between two sizes — go up
Mithra rings do not come in half sizes. If you measure between two, choose the larger. A ring that is slightly large is easy to fix with a silicone adjuster; one that will not pass your knuckle is not. What adjusters fix, and what they do not, is in do ring size adjusters work.
Not sure at all? Start with an adjustable ring
If this is your first ring order online, an adjustable ring removes the risk — Mithra's adjustable rings open and close across roughly US 5 to 8. Size it once when it arrives and leave it; the opening only wears if it is re-bent often. It is also the simplest gift when you cannot get a measurement. Browse rings, including adjustable styles.
When the ring arrives
- Try it on the finger you measured — sizes differ finger to finger.
- Expect mild resistance at the knuckle. Sliding over with no resistance usually means it will spin.
- Wear it for five minutes. Initial snugness often settles; real tightness does not.
- Try it again in the evening before deciding.
If it is clearly wrong, Mithra & Co exchanges for sizing within 7 days of delivery, as long as the ring is unworn and in original condition — so try it on soon after it arrives. Mithra rings are 18K PVD over 316L stainless steel and hold their shape in normal wear; material, lifespan, and care are in the rings buying guide.
Frequently asked questions
Q1. What is the average ring size for women in Pakistan?
A: US 6 is the most common, usually on the ring or index finger, with US 7 close behind. The middle finger often runs to US 7 or 8. Treat US 6 as a starting point and confirm it with a measurement — averages do not fit individual fingers.
Q2. How do I measure my ring size at home without any tools?
A: Wrap a thin strip of paper or thread around the base of the finger, snug but not tight, mark the overlap, and measure the length in millimetres against a ruler. That is your circumference; match it to the chart above. Do it in the evening, twice.
Q3. Why does my ring fit differently in summer and winter?
A: Fingers swell in heat and shrink in cold. A ring that fits on a warm evening can feel loose on a winter morning, and one sized in winter can be tight in July. Measure on a warm evening for an all-year fit, and use a removable adjuster on cold days.
Q4. What if my knuckle is larger than the base of my finger?
A: Measure both. A ring sized to the base will not go over the knuckle; one sized to the knuckle will spin. Choose a size between the two, leaning toward the knuckle, and add a silicone adjuster if it turns at the base.
Q5. Can I find out someone else's ring size without asking?
A: Yes. Borrow a ring they wear on the finger you are buying for and measure its inner diameter straight across in millimetres, then match it to the diameter column. If you cannot borrow one, an adjustable ring is the safest gift.
Q6. Do Mithra rings come in half sizes?
A: No — whole US sizes only, 5 to 9. If you measure between two, go up to the larger size.
Q7. How do I convert my size from UK or another system?
A: Ignore the letter or number and use millimetres. Measure the inner diameter of a ring that fits, or your finger's circumference, and match that figure to the chart. Millimetres mean the same thing in every system.
Q8. What if the ring I ordered does not fit?
A: Contact Mithra & Co within 7 days of delivery with the ring unworn and in original condition, and it can be exchanged for the correct size. If it is only slightly large, a silicone adjuster fixes it without an exchange.




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